Byron h



B. H. ROSE.

SASH BALANCE.

(No Model.)

Patented May 3, 1892.

UNITED STATES PATENT OFFICE.

BYRON H. ROSE, OF ROCHESTER, NEW YORK, ASSIGNOR TO THE PULLMAN SASH BALANCE COMPANY, OF SAME PLACE.

SASH-BALANCE.

SPECIFICATION forming part of Letters Patent No. 474,329, dated May 3, 1892.

Application filed March 12, 1892. Serial No. 424,630. (No model.)

To ctZZ whom it may concern.- part has a hollow interior hub h, which rests Be it known that I, BYRON II. ROSE, of on the rivet k, that extends from side to side Rochester, in the county of Monroe and State through the case. By this means both parts of New York, have invented a certain new are held in position. The driving-spring D 5 and useful Improvement in Sash-Balances; is attached at one end to the hub of the cover and I do hereby declare that the following is E and at the other to the face of the drum B,

a full, clear, and exact description of the same, and since the cover is non-revolving the spring reference being had to the drawings acoomis wound up by the turning of the drum.

panying this specification. G is a flat spring interposed between the IQ Myimprovement relates to spring-balances exterior closed face of the cover E and the 55 for holding sash; and it consists in the comside plate of the case A. It exerts pressure bination of a case provided with two side against the cover and forces the face of the plates, a spring-drum turning on a rivet belatter against the rimdof the drum,thus protween the side plates, a loose rim or cover enducing thenecessary brake action. The press- I5 circling the spring-drum, and a spring placed ure of the spring is gaged at the time the rivet 60 between one of the side plates and the cover, is fastened in place and requires no adj ustwhereby the latteris forced against the drum ment afterward, thus presenting great advanto produce brake action, as 'hereinaftermore tages over those devices where the brake has fully described. to be tightened up by a screwor other means In the drawings, Figure 1 is a perspective after the parts are put together. 5 view of the device. Fig. 2 is a longitudinal The part E serves the double purpose of a vertical section of the same. Fig. 3 isa crosscover to inclose and hide the winding-drum section in line a: a; of Fig. 2. and as a brake to the same, and being loose A indicates the case. It consists of a faceand unfastened,except by the rivet, itis read- 5 plate a and two side plates 1) b, the latter inily pressed up to place by the spring. 70 closing the spring-drum and cover. Having described my invention, what I 13 is the spring-drum, on which winds the claim as new, and desire to secure by Letters tape 0, attached to the sash. The drum is Patent, is operated byacentral coiled springD, as usual. In a sash-balance, the combination of the The drum consists of a cylindrical face 0 on case A, provided with the side plates 1) b, the 75 which the tape winds and a projecting vertispring-drum B, turning on arivet therein and cal rim or flange d, which extends outward provided with the projecting rim d, the cover some distance from the face, as shown in the E, fitted loosely between the side plates, incross-section, Fig. 3. closing the drum and resting against its rim E is the loose rim or cover which incloses d, and the spring G, interposed between the 80 the drum. It consists of a shell similar in cover and the side plate of the case for forcform to the drum and resting loosely between ing the cover against the rim of the drum, as the two side plates 1) b of the case. Its outer herein shown and described. side is circular; but its inner ends f f are In witness whereof I have hereunto signed straight and tangential-and extend clear back my name in the presence of two subscribing 85 to the face-place of the case, by which means witnesses.

it entirely incloses the interior parts. The B. H. ROSE. inner ends of both the drum and cover are Witnesses: open, as shown, and the edge g of the cover F. D. NYE,

bears against the rim d of the drum. Each A. J. ROSENTRETER. 

